Door-operating device



Feb. 7, 1928.

l 65 L. w. HUBER-rv 8'640 DOOR OPERATING DEVICE Filed sept. 9. 1925 2 sheets-Shen 1 25122-3... /Q

o f5 Q@ 2/ o l, y o I@ l 3 2b j S n uIfHiIIIILIII :III:

,619 e ATroRNEY Feb. 7, 1928.

L. w. HUBERTY DOOR OPERATING DEVICE Filed Sept. 9. 1925 2 Sheets- Sheet 2 E1E lNvENToR LS W ubeg/ jew ATTORNEY Patented Feb. 7, i928.

UNITED STATES htten PATENT ovvi-cav.

Lntvrs w. Herinner, 'or Geuren, onto.

noonnrnngarine nnvion.

Application filed september a, 1925; sei-iai No. 55,285.

cially sliding` doors, and still more especially p the doors ot a garage or the like but noty limited in its utility to any o'l said tunetions.

An object ot the invention is to provide a door operating means which will automatically from the same. source oit power open und close thedoors with new and improved means for controlling the action of power lf'or the purpose.

A further object ot the invention ieA to provide an apparatus driven" from some' source oit' power comprising'` winding' drums` which,` when rotated in the proper direction.' will either open or close the closures as 'occasion may make neceesaryor dcsirable'and also providing` additional means torr automatically reversing the action `ot rcontinuous power for moving the doors -from anattained to the opposite liniit.-

`With these and other objects in" view. the invention comprises certain novel par ments, units, combinations, construetioi rangements, interact-ions` mechanical movements and functions `as disclosed in the drawings together withA mechanical and functional equivalents thereoi' as willbe hereinatt'er more fully described and claimed.

ln the drawings: p p l.

Figure 1 `is a conventional'figure showing the utilitylot thepresent invention in op- @ratingoppositely slidinl doorsand receiv-` ing power 'from a convenientl'yy located motor. y

Figure 2 is a Vsectional view of the device taken in a vertical plane parallel with the path of movement of the doors. y

Figure Stis'a` horizontal ksectional view taken on line 3-3 of Figure' 2. l y y Figure 4 is a vertical sectional vieu/taken transverse vto and on line .lle-l of lFifnireQ;`

Figure 5 is a. vertical sectional view taken on `a plane'transverse to and indicated by line --lot Figure 2.' i v y 1 Figui-e6 is a vertical secti nal view illustrailing one of the mechanical movements.

Lilie ycharacters of reference indicate corresponding` parts throughout the several views. y l

The improved door operating` device which torm'sthe subjectmatter otthisapplication comprises two units A and B, the unit A being the unit for windingand unwinding the cable for operating' the doors and takingl power directly from thc Source offp'ower, as the motor. while the unit B comprises means for shitting the belt from the power` to unit A at the limit ot movement otthe door Thevdoors. here shown as oppositely slidingl doors C and D, are only shown for illustration and it is to be1 understood that,l while the device is capable of operating such oppositely and simultaneously sliding doors,` will likewise operate a single door or doors otherwise operated than as .shown and that the invention isin no way limited by the showing otthe doors C and l). These doors slide in the type shown in the illustration upon thetrack E which is no limitation upon the invention and any type ot sliding doors or track for sliding' doors is within the `scope oi the invention. wise,4 as shown at. Figure 1. a' .motor indicated as an electricmotor F, is indicated as the source of power, but it is to be understood that. while such electric motor l" is desirable', it is in no way necessary to the :invention and any means ot applying power is Within the scope.

From whatever source power is recciveo,

however, it is conducted through a" belt 10i 'troni such source to the unit A. and" upon the pulleys 11, 1:2 and 13. The pulley 'l1/is mounted rigidlyupon the shaltle which is also rigidly connected with the winding drum 15. rihe pulley 13, through the nicdiuln ot its hub 1Gi is rigidly connect-ed with the windingdrum` 17, the shaft lll passing through the pulley 18, hub 16 and druinl' upon which shaft said member is tree to rotate. T he pulley 12 is idler interposed between the working pulleys 11. yand 13 in the usual well known manner ot loose pulleys. It is obvious that, it the belt lOis shifted from the pulley 11 across the loose pulley 12 to the pulley 13. the power previously appliedy throughthe belt to the pulley 11 will be transferred to the pulley/13. The reverse movement will reverse this action."y y Y The winding drum 15 is provided with cables' 18 and 19 which, whenwound upon thedrum 15. serve to move the doors Cv and D apart. The drum 17 is Aprovided `with Likey ico cables 20 and 21 which, when wound upon the drum 17, serve to move the doors C and D together. The operation of thispart of the structure will be understood :trom the iorefroing` and that, when the belt is shifted from one of the working pulleys to the other, the one drum will be released and the other drum operated so that by the versed.

shifting across of the belt 10, `the action oi the power from the sourceiF will be re- For the purpose' of shifting this belt 10 at the limit ot movement olf the doors, 'the unit B is provided. This unlt B comprises a roller 22 over which the belt lO'passes, bearing thereon with su'iicient frictional engagement to rotate saidproller as the belt moves. Beneath the roller 22 a worm 23 is liournaled rotating from the roller22 by means ot aband 24 passing over a `grooved pulley 25 upon the roller and a similar grooved pulley 26 carried by the worm Beneath the worm 23 a similar worm 2T 1s journaled receiving power from the worm 23 through the medium of gears 23.` As `the roller 22 rotatesunder t-he actionof the belt l0 passingr thereover,the worms 23 and 27 rotate in opposite directions by reasonot the intergearinp,- at the gears 28. e

Located in approximately horizontal relation to and in a plane intermediate the worms 23 and 27 are `raide rods 29 and 30 upon which is mounted to slide a table 31 by the provision ot ears 32. Beneath the guide rod 29 is a third guide rod 33 and a belt shifter comprising` downwardly extendinor arms 34 slides upon the rods 29 and 30 and is connected with Vthe table 31. This table 31 extends between the worms 23 and 27, as shown more particularly at Figures 2 and 4, and mounted thereon is a jack 35i Theljacl; arries upon its upper and under side respectively mutilated nuts 36 and 37 adapted, as the jack is raised or lowered, to `en a i,'e` respectively with the worms V23 and 27. Above the table 31 ay guide rod 38 is mounted upon which moves roller 39 which supports a spring 40, the opposite en d of which is connected with the jack 35 teuding to raisesaid jack to hold the mutilated nut 36 in engagement with the worm 23.

At one side a cam 41 is located in such position that as the table V31 and jack 35 move to its position under the action of the worm, the cam forces the jack downwardly first out of engagement with the worm 23 and then into engagement with the worm 27. When the jack has been depressed, as shown at Figure 6, a roller 42 carried by the vlever 43 is forced by the spring 44 to engage upon the top of the jack and hold `it in its depressed position, that is to say in engagement with the worm 27. At the opposite limit of movement` 'a cam 45 is provided which engages the lever 43 and moves it to the position shown at Figure 2, whereupon the spring' 40 again acts to release the nut 37 from the worm 2T and engage the nut 36 with the worm 23.

In operation, assuming that the doors are at one limit ci" their movement as shown at Figure 1, the belt 1() would be in engage ment with the pulley 13 and the lever 43 and roller 42 would be in the position shown at Figure (i with the jack 35 depressed to bringtbe nut 37 into engagement with the worm 27. Powner now applied to the pulley 13 will cause the 1ables 20 and 21 to he wound upon the drum mvinp; the doors to closed position. Siimiltaneously, the belt 10 passing over the roller 22 will `rotate the worms 23 and 2T Fo that the table 31 and its associated parts will move entirely from one end et the worms to the other. The move ment of this table 31 and its associated parts will shi'lft the belt 10 from operative `engagement with the pulley 13 to engagement withthe pulley 11, over run being taken advantage of in the usual well known manner. Upon the movement of the table and its associated parts to the opposite extreme ot movement, the cam 45 will engage the lever 44 and move it to the position shown at Figure 2whereupon the spring 40 will throw the jacl`35 from the position shown at Figure 6 tothe position shown at Figure 2 and theparts are now ready to reverse 'and open the doors at the next operation. From this point the cycles of operation will be fully understood and further description would only add to the record.

lVhat I claim to be new is:

l. The combination with adjacently journaled pulleys and abelt adapted to actuate either of said pulleys eleetively, a roller upon which one section ofthe belt operates, a pair of adjacent worms journaled transversely of the belt and intergeared to rotate in opposite directions and driven from the roller, a ment ber introduced between and mounted'to move longitudinally oi the worms, nut sections carried by said member adapted to separatelyengage with the worms, means atopposite extremes of travel ofthe member to shift the member to release the engaged nut section and engage the free nut seetiomand means carried by the member to shift the belt in its movement.

2. The combination with adjacently journaled pulleys and a belt adapted to actuate either of said pulleys electively, a roller upon which one section of the belt operates, a pair of adjacent worms journaled transversely to the belt and 'intergeared to rotate in opposite ydirections and driven from the roller, a guide mounted in parallelism with the worms, a member introduced between the Worms and mounted to slide longitudinally upon the guidanut sections carried by said member adapted to separately engage with llll the Worms, means at opposite extremes o travel of tlie member to shift the member to release the engaged nut section and engage tlie tree nut section, and means carried by the member to shift the belt in its movement.

In combination with adjaeently journaled pulleys and a belt adapted to aotuate either ot said pulleys electively, a roller upon which one section of the belt operates, a pair ot' adjacent Worms journaled transversely to the belt and intergeared to rotate in opposite directions and driven trom the roller, a pair olf.' guides mounted upon opposite sides oit and in parallelism with the Worms, a member introduced bet-Ween the Worms and mounted to move longitudinally upon tlle guides, nut sections carried by said member adapted to separately engage with the Worms, means at opposite extremes of travel ot the member to sliitt the member to release the engaged nut section and engage the tree nut section, and means carried by tlie member to shift the belt in its movement.

4. The combination with adjaoently journaled pulleys and ak beltadapted t0 actuate either of said pulleys electively, a roller upon which one section of the belt operates, a pair ol Worms journaled transversely ofthe belt and intergeared to rotate in opposite directions and driven from the roller, a member introduced between and mounted to move longitudinally ot tlieivorms, nut sections oarried by said member adapted to separately engage with the Worms, a spring,- tending to hold the member with one nut section in engagement vvitli one ot tbe worms, means at one extreme ot travel ot' the member to move the member against the tension ot the spring, to disengage the engaged nut section and engage the tree nut section, a latoli to hold said member in said last assumed position, means at opposite extreme of travel to release said latch, and means carried `by tlie member to shit't the belt in its movement.

ln testimony Wliereot I affix my signature.

LEWIS lV. HUBERTY. 

